Results 91 to 100 of about 400,889 (304)

3D Large‐Scale Subwavelength‐Resolution Sound Sheet Tomography Based on an Active and Programmable Circular Meta‐Array

Advanced Science, EarlyView.
A programmable 2048‐element circular ultrasound array combined with a compact acoustic lens produces a thin “sound sheet” over a large field of view, and records echoes with wide angular diversity across the ring aperture. Coherence‐enhanced beamforming converts full‐matrix data into high‐contrast tomographic slices, delivering near‐diffraction‐limited
Qiu‐De Zhang, Zi‐Bin Lin, Zhuo Chen, Zhao‐Hui Liu, Jin‐Lian He, Jun‐Jie Song, Long‐Sheng Zeng, Liang Zhou, Ming‐Yue Ding, Yu‐Gui Peng, Ming Yuchi, Xue‐Feng Zhu   +11 more
wiley   +1 more source

Examining the role of the hole and the orientation of the baffle on the loss of sound transmission in reactive mufflers using COMSOL software simulation [PDF]

طب کار
Introduction: Nowadays, noise pollution in the environment has become as a worldwide health concern. A  large share of this noise comes from vehicles, where mufflers in their exhaust systems are essential for lowering engine noise levels.
Iraj Alimohammadi, Mahdi Farrokhi, Sevda Javadi, Saideh Nasher   +3 more
doaj  

Estimation of Sound Transmission Loss in Nanofiber Nonwoven Fabrics: Comparison of Conventional Models and the Simplified Limp Frame Model. [PDF]

Nanomaterials (Basel), 2023
Sakamoto S, Hasegawa T, Ikeda K.
europepmc   +1 more source

Numerical Study of Transmission Loss Through a Slow Gas Layer Adjacent to a Plate [PDF]

This paper describes a systematic numerical investigation of the sound transmission loss through a multilayer system consisting of a bagged gas and lightweight panel.
Beck, Benjamin S., Schiller, Noah H., Slagle, Adam C.   +2 more
core   +1 more source

Acoustic Supercoupling in a Zero-Compressibility Waveguide

, 2018
Funneling acoustic waves through largely mismatched channels is of fundamental importance to tailor and transmit sound for a variety of applications. In electromagnetics, zero-permittivity metamaterials have been used to enhance the coupling of energy in
Alù, A., Byrne, M. S., Esfahlani, H., McDermott, M.   +3 more
core   +1 more source

Persistently Increased Expression of PKMzeta and Unbiased Gene Expression Profiles Identify Hippocampal Molecular Traces of a Long‐Term Active Place Avoidance Memory and “Shadow” Proteins

Advanced Science, EarlyView.
Protein complexes like KIBRA‐PKMζ are crucial for maintaining memories, forming month‐long protein traces in memory‐tagged neurons, but conventional RNA‐seq analysis fails to detect their transcript changes, leaving memory molecules undetected in the shadows of abundantly‐expressed genes.
Jiyeon Han, Alejandro Grau‐Perales, Rayna M. Harris, Edith Lesburguères, Hsin‐Yi Kao, Asit Pal, Juan Marcos Alarcon, Todd C. Sacktor, Stefano Martiniani, Hans A. Hofmann, André A. Fenton   +10 more
wiley   +1 more source

Influence of Magnetic Field on Sound Transmission Loss of the Unit Filled with Magnetorheological Fluid. [PDF]

Materials (Basel), 2022
Xu X, Wang Y, Wang Y.
europepmc   +1 more source

Toward Next‐Generation High‐Speed Communication and Imaging: Solution‐Processed Sb2(S,Se)3/CdS Heterojunction for Ultrafast Self‐Powered Photodetector

Advanced Science, EarlyView.
A high‐quality solution‐processed Sb2(S,Se)3/CdS heterojunction is designed to overcome the intrinsic limitations of conventional photodetectors. The fabricated device achieves an excellent self‐powered performance, including a high responsivity of 0.6 A W−1, an ultrahigh specific detectivity of 7.68 × 1012 Jones, and a wide 3db bandwidth of 175 kHz ...
Xuhua Xiao, Yichao Wang, Jingxuan Bian, Hailong Wang, Yongqiang Wang, Jinpeng Xu, Junwei Chen   +6 more
wiley   +1 more source

Sound transmission loss of double-walled sandwich cross-ply layered magneto-electro-elastic plates under thermal environment. [PDF]

Sci Rep, 2022
Refahati N, Jearsiripongkul T, Thongchom C, Saffari PR, Saffari PR, Keawsawasvong S.   +5 more
europepmc   +1 more source

Gasdermin D‐Mediated Release of IL‐33 Results in Fetal Brain Developmental Abnormalities During Maternal Colitis

Advanced Science, EarlyView.
Under colitis, Gsdmd mediates the release of IL‐33 from the epithelium of pregnant mice. IL‐33 can cross the placenta and enhance the proliferative capacity of neural stem cells, ultimately resulting in behavioral deficits in the offspring. Excessive pyroptosis in the colonic epithelium also triggers the translocation of LPS, which in turn increases ...
Huiyang Jia, Shukui Zhang, Kai Ma, Jie Zhou, Jianwei Jiao   +4 more
wiley   +1 more source